2. Scratch Coat Application

All lathed surfaces should be covered with a 1/2” to 3/4” coat of mortar and allowed to set approximately 30 minutes prior to installing stones. Mortar mix consists of one part type “N” cement and two parts mason sand. Mix with enough water to achieve a workable consistency.

The same mortar mixture is used for scratch coating, setting the stone and grouting the joints.

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